/****************************************************************************
 * include/netinet/in.h
 *
 *   Copyright (C) 2007, 2009-2010 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name NuttX nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 ****************************************************************************/

#ifndef __INCLUDE_NETINET_IP_H
#define __INCLUDE_NETINET_IP_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include <sys/types.h>
#include <stdint.h>

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* Values for protocol argument to socket() */

#define IPPROTO_IP            0    /* Dummy protocol for TCP */
#define IPPROTO_HOPOPTS       0    /* IPv6 Hop-by-Hop options.  */
#define IPPROTO_ICMP          1    /* Internet Control Message Protocol */
#define IPPROTO_IGMP          2    /* Internet Group Management Protocol */
#define IPPROTO_IPIP          4    /* IPIP tunnels (older KA9Q tunnels use 94) */
#define IPPROTO_TCP           6    /* Transmission Control Protocol */
#define IPPROTO_EGP           8    /* Exterior Gateway Protocol */
#define IPPROTO_PUP           12   /* PUP protocol */
#define IPPROTO_UDP           17   /* User Datagram Protocol */
#define IPPROTO_IDP           22   /* XNS IDP protocol */
#define IPPROTO_TP            29   /* SO Transport Protocol Class 4.  */
#define IPPROTO_DCCP          33   /* Datagram Congestion Control Protocol */
#define IPPROTO_IPV6          41   /* IPv6-in-IPv4 tunnelling */
#define IPPROTO_ROUTING       43   /* IPv6 routing header. */
#define IPPROTO_FRAGMENT      44   /* IPv6 fragmentation header.  */
#define IPPROTO_RSVP          46   /* Reservation Protocol. */
#define IPPROTO_GRE           47   /* General Routing Encapsulation. */
#define IPPROTO_ESP           50   /* Encapsulation Security Payload protocol */
#define IPPROTO_AH            51   /* Authentication Header protocol */
#define IPPROTO_ICMPV6        58   /* ICMPv6 */
#define IPPROTO_NONE          59   /* IPv6 no next header. */
#define IPPROTO_DSTOPTS       60   /* IPv6 destination options. */
#define IPPROTO_MTP           92   /* Multicast Transport Protocol.  */
#define IPPROTO_ENCAP         98   /* Encapsulation Header. */
#define IPPROTO_BEETPH        94   /* IP option pseudo header for BEET */
#define IPPROTO_PIM           103  /* Protocol Independent Multicast */
#define IPPROTO_COMP          108  /* Compression Header protocol */
#define IPPROTO_SCTP          132  /* Stream Control Transport Protocol */
#define IPPROTO_UDPLITE       136  /* UDP-Lite (RFC 3828) */
#define IPPROTO_RAW           255  /* Raw IP packets */

/* Values used with SIOCSIFMCFILTER and SIOCGIFMCFILTER ioctl's */

#define MCAST_EXCLUDE         0
#define MCAST_INCLUDE         1

/* Special values of in_addr_t */

#define INADDR_ANY            ((in_addr_t)0x00000000) /* Address to accept any incoming messages */
#define INADDR_BROADCAST      ((in_addr_t)0xffffffff) /* Address to send to all hosts */
#define INADDR_NONE           ((in_addr_t)0xffffffff) /* Address indicating an error return */
#define INADDR_LOOPBACK       ((in_addr_t)0x7f000001) /* Inet 127.0.0.1.  */

/* Special initializer for in6_addr_t */

#define IN6ADDR_ANY_INIT      {{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}}}
#define IN6ADDR_LOOPBACK_INIT {{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}}}

/* struct in6_addr union selectors */

#define s6_addr               in6_u.u6_addr8
#define s6_addr16             in6_u.u6_addr16
#define s6_addr32             in6_u.u6_addr32

/* This is part of my additions however it's still not supported in NuttX natively */
#if defined (NUTTX_RTOS)
#define IP_MULTICAST_IF                 32
#define IP_MULTICAST_TTL                33
#define IP_MULTICAST_LOOP               34
#define IP_ADD_MEMBERSHIP               35
#define IP_DROP_MEMBERSHIP              36
#define IP_UNBLOCK_SOURCE               37
#define IP_BLOCK_SOURCE                 38
#define IP_ADD_SOURCE_MEMBERSHIP        39
#define IP_DROP_SOURCE_MEMBERSHIP       40
#define IP_MSFILTER                     41
#define MCAST_JOIN_GROUP                42
#define MCAST_BLOCK_SOURCE              43
#define MCAST_UNBLOCK_SOURCE            44
#define MCAST_LEAVE_GROUP               45
#define MCAST_JOIN_SOURCE_GROUP         46
#define MCAST_LEAVE_SOURCE_GROUP        47
#define MCAST_MSFILTER                  48
#define IP_MULTICAST_ALL                49
#define IP_UNICAST_IF                   50
#endif

/****************************************************************************
 * Public Type Definitions
 ****************************************************************************/

/****************************************************************************
 * Public Type Definitions
 ****************************************************************************/

/* IPv4 Internet address */

typedef uint32_t in_addr_t;

struct in_addr
{
  in_addr_t       s_addr;      /* Address (network byte order) */
};

#define __SOCK_SIZE__   16              /* sizeof(struct sockaddr)      */
struct sockaddr_in
{
  sa_family_t     sin_family;  /* Address family: AF_INET */
  uint16_t        sin_port;    /* Port in network byte order */
  struct in_addr  sin_addr;    /* Internet address */

/* Pad to size of `struct sockaddr'. */
  unsigned char   __pad[__SOCK_SIZE__ - sizeof(short int) -
                       sizeof(unsigned short int) - sizeof(struct in_addr)];
};
#define sin_zero        __pad           /* for BSD UNIX compatibility      */

/* IPv6 Internet address */

struct in6_addr
{
  union
  {
    uint8_t       u6_addr8[16];
    uint16_t      u6_addr16[8];
    uint32_t      u6_addr32[4];
  } in6_u;
};

struct sockaddr_in6
{
  sa_family_t     sin_family;  /* Address family: AF_INET */
  uint16_t        sin_port;    /* Port in network byte order */
  struct in6_addr sin6_addr;   /* IPv6 internet address */
};

struct ip_mreq  {
  struct in_addr imr_multiaddr;   /* IP multicast address of group */
  struct in_addr imr_interface;   /* local IP address of interface */
};
/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

#endif /* __INCLUDE_NETINET_IP_H */
